Checking The Immobilizer System - Yamaha 2003 FJR1300 Service Manual

CHECKING THE IMMOBILIZER SYSTEM

1. Immobilizer system indicator light does not
go on when the main switch is set to "ON".
1. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler as shown.
Tester positive probe → green/blue 1
Tester negative probe → black 2 2
2
R/G B2 G/R
Br/R
R/W G/W Y/L Lg
• Set the main switch to "ON".
• Measure the voltage (12 V) between
green/blue and black 2 on the meter
assembly coupler.
• Is the voltage within specification?
YES
Replace the meter
assembly.
2. Voltage
• Connect the pocket tester (DC 20 V) to the
immobilizer unit coupler as shown.
Tester positive probe → red/green 1
Tester negative probe → black 2
2 1
B BB
R/G
Y/L G/L R/W
1
G/L
W
Y Ch Dg L
NO
R/G B2
B
R/W Lg Y/L
IMMOBILIZER SYSTEM
• Set the main switch to "ON".
• Measure the voltage (12 V) between red/
green and black on the immobilizer unit
coupler.
• Is the voltage within specification?
3. Voltage
• Connect the pocket tester (DC 20 V) to the
immobilizer unit coupler as shown.
Tester positive probe → red/white 1
Tester negative probe → black 2
2
B BB
Y/L G/L R/W
• Set the main switch to "ON".
• Measure the voltage (12 V) between red/
white and black on the immobilizer unit
coupler.
• Is the voltage within specification?
– 142 –
ELEC
YES
The wiring
from the battery to
the immobilizer unit
is faulty and must be
repaired.
R/G R/G B2
R/W Lg Y/L
1
YES
The wiring
from the main switch
to the immobilizer
unit is faulty and
must be repaired.
– +
NO
circuit
B
NO
circuit